Gauge



Arum

IRVIN FLINN WOODROW, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGNMENTS, T0 STANDARD STEEL AND BEARINGS INCORPORATED, OE WIL-MINGTON, DELAWARE, A CORPORATION OF DELAWARE.

GAUGE.

Specification of Letters Patent.

Patented July 11, 1922.

To all whom it may concern.

' Be it known that I, IRVIN F. Wooonow, a

citizen of the United States, residing atWest Philadelphia, county ofPhiladelphia and State of Pennsylvania, have invented a certain new anduseful Improvement in Gauges, of which the following is of such anexact, clear, and full description, as to enable one skilled in the artto make and use the same.

My invention relates to gauges and more especially to a device fordetermining in a speedy and efficient manner whether or not the angle oftaper on a roller such as that used in a taper roller bearing is corrector not and which can also be used to gauge the outside diameter of aroller of this character.

A further object of the invention is the provision of a gauging devicein the operation of which the possibility of inaccurate gauging due tothe human element, is prevented. This is accomplished by makinguse of apositive means for operating the plunger the strength of which isconstant. In this way the unequal pressures always present when thecontacts areoperated by hand, are overcome.v

The device is illustrated in the single figure of the drawings which isa side elevation of the gauge and to which reference is made by theusual reference characters.

The gauge consists of a base 1 havlng a vertical arm 2 the upper end 3of which is turned horizontally and overhangs the base.

The" end 3 is split at 4, which split extends into an opening for thesupporting rod 5, a clamp screw 6 extending over the split end andserving to contract the supporting rod opening to clamp said supportingrod in place.

Carried by the base 1 and attached thereto in any suitable manner, is abed 7., A plate 8 having a dove-tail tongue and groove connection withthe bed 7. is slidably mounted on said bed and a work holder ispiyotally mounted on said plate, the work holder comprising a block 9having a groove, preferably V shaped, thereon. Suitable set screws 10are provided on the plate '8 by means of which the work holder may beset at any desired angle. A set screw 11 is carried b the work holder atone end and extends longitudinally of the groove. The opposite end 'ofthe groove forms a permanent stop 12. Set screws 13 are provided toadjust and limit the path of reciprocatory movement of the plate 8.

' Attached to the lower end of the rod 5 is the indicator carrier 14having an arm 15 having an aperture in the upper end thereof throughwhich extends the arm 15 of an indicator, and which is held in placeby-the set screw 15?. Supported from the bottom of the carrier 14 is thehanger 16 in which the operating lever '17 is pivotally mounted on thepin 18. The end 17 of the arm of this lever bears against the plunger 19of theindicator 20 and the end of the arm 17 bears against the head 21of the pin 22 which is mounted for reciprocation in the lower part ofthe. hanger 16. A guide 23 for the pin 22 projects below the hanger andis attached thereto in any suitable manner. In the lower end of the pin22, is set a diamond point 22 which is adapted to contact with themember to be gauged. I

Attached to the rod 5 is a clamp 24 which carries the set screw 25, thepurpose of which is to limit the outward throw of the lever 17.Connecting the lever 17 and the rod 5 is any suitable resilient means 26such for example as an elastic band or a contractile spring.

The lengthof the-arm 17 is a multiple of the arm 17", the purpose ofwhich is to give a finer and more accurate reading on the scale of theindicator.

In using my device to gauge the angle of taper of a member the workholder 9 is set at such an anglethat when a member to be engaged isplaced therein, the line of contact between the surface of the memberand the diamond pointwill be exactly at right angles to the axis of thepin 22 if the angle of taper of the member is correct. Having the workholder set in this position the'lever 17 is operated 'by taking hold ofthe handle provided thereon for the purpose,-and pulliiig, downwardthereon, th'us disengaging the end 17 from the head 21 of the pin 22,thereby allowing the latter to be raised by the insertion oiia rollR'inth'e'V groove between the'set screw 11 and'the stop 12. The lever isthen released and the resilient means 26 pulls mond point into contactwith the member to be engaged. Next the plate Sand with it the workholder and the work is reciprocated. If the angle of the work or memberis correct there will be no variation in the reading scale.

By use of the resilient means 26, the force tending to press the diamondpoint into contact with the work is always the same. This does away withthe possibility of inaccurate gauging which is always present when thediamond point is pressed down by The force used by'the operaan operator.tor is never twice exactly alike, nor is the force used by difierentoperators, ever exactly the same. i

To use this device to gauge the outside diameter of either acylinderical or tapered roller, the set screws 13 are so placed as toprevent reciprocation of the plate 8. The roller is then inserted in thesame way and the lever released and a reading of the-scale of theindicatoris taken.

If desired, this device can be used as a combined gauge to determine theoutside diameter-and the angle of taper of the roller. To do this theroller is inserted in the V block and a reading taken for the diameterand then the plate is reciprocated and the indicator observed todetermine the accuracy of the angle of taper. 7

It is, of course, understood that the particular device shown anddescribed in the present application illustrates merely a preferred formof construction and arrangement of parts, which, it has been found, willsuccessfully carry out the principles of m 'nvention, and that variouschanges and modifications of details may easily be made withoutdeparting from the spirit of my invention as defined in the appendedclaims.

I claim as my invention: 7

1. In a device of the character described, a base, a platereciprocatively mounted thereon, a holder pivotally mounted on saidplate,

' and a contact element supported in position to engage anarticlecarried by said holder.

2. In a device of the character described, a base, a platereciprocatively mounted thereon, a ho der pivotally mounted on saidplate, a contact element supported in position to engage an articlecarried by said holder, and an indicator operatively associated withsaid contact element. p 3. In a device of the character described, abase, a plate reciprocatively mounted thereo'n,,a holder pivotallymounted on said plate, means to ad ust said holder, and a contactelement supported in position to engage an article carried bysaidholder.

4. In a device of the, character described, a base, a platereciprocatively mounted thereon, a holder pivotally mounted on saidplate, means to adjust said holder, a contact element supported inpositi'on to engage an article carried by said holder, and an indicatoroperatively associated with said contact element.

5. In a device of the character described, a base, a platereciprocatively mounted thereon, a holder pivotally mounted on saidplate, means to adjust said holder, means to vary the range or stroke ofreciprocation of said plate, and a contact element supported in positionto engage an article carried by said holder.

6. In a device of the characterdescribed, a base, a platereciprocatively mounted thereon, means to varythe range or stroke ofreciprocation of said plate, a holder pivotally mounted on said plate,means to adjust the position of said holder, a support, a contact,element movably mounted on said support in position to engage an articlecarried by said holder, an indicator and movable means engaging saidcontact element and operatively associated with said indicator.

7. In a device of the character described, a base, a platereciprocatively mounted thereon, means to vary the range or stroke ofreciprocation of said plate, a holder pivotally mounted on said plate,means to adjust the position of said .holder, a support, a contactelement movably'mounted on said support in position to engage anarticlecarried by said holder, an indlcator, and a lever pivotallymounted on said support, said lever having one arm adapted to engagesaid contact element and the other arm operatively associated with saidindicator.

8. In' a device of the character described, a base, a platereciprocatively mounted thereon,

' means to vary the range or stroke ,of reciprocation of said plate, aholder pivotally mountof said holder, a support, a contact elementmovably mounted on said-support in position to engage an article carriedby said holder, an indicator, and a lever, one of the arms of which is amultiple of the other, said lever being pivotally mounted .on thesupport with the short arm in engagement with said contact element andthe long arm operativel associated with said indicator.

9. l h a device of the character described, a base, a platereciprocatively mounted thereon, means to vary the range or stroke ofreciprocation of said plate, a holder pivotally mounted on said plate,means to adjust the position of said holder, a support, a member carriedby said support, and adjustable relative to said base, a contact elementmovably. mounted on said member in position to engage an article carriedby said holder, an. indicator carried by said memthereon, a holderpivotally mounted on said plate, a contact element supported in positionto engage an article carried by said holder, and means for exertinguniform pressure on said contact member.

11. In a device of the character described, a base, a platereciprocatively mounted thereon, a holder pivotally mounted on saidplate, a contact elementsupported in posi tion to engage an articlecarried by said holder, and means including a resilient member forexerting uniform pressure on said contact member.

12. In a measuring device, a support and a holder adjustable relativelyto each other, a. contact element mounted in said support and adapted toengage an article carried by said holder, an indicator carried by saidsupport, a bell crank lever pivotally mounted on said support, saidlever engaging the contact means and being adapted to operate saidindicator, and a constant tension means to operate said lever.

13. In a measurin device, a support and a holder adjustable re ativelyto each other, a contact element reciprocatively mounted in said supportand adapted to engage an article carriedr by said holder, an indicatorcarried by said "support, a lever pivotally mounted on said support, onearmof which lever engages the contact element and the other arm of whichoperates the indicator and means for actuating said lever.

14. In a device of the character described,

a holder, .a support adjustable relative thereto, a contact elementcarried by said support and adapted to engage an article in said holder,means for actuating said contact element including a lever pivoted tothe support and in contact with said element, and a constant tensionmeansoperatively associated with said lever and said support.

1, 15. In a device'of the character described, a holder,'a supportadjustable relative thereto, a carrier attached thereto, a hangersupported. by'said carrier, a contact rod reciprocatively mounted insaid hanger, an indicator supported by said carrier, and a bell cranklever pivotally'at-tached to said hanger and operatively associated withsaid rod and said indicator.

16. In a device of the character described, a bed, a holderreciprocatively mounted thereon, a support on said bed, a carrierattached to said support, a hanger supported by said carrier, a contactrod reciprocat-ively mounted in said hanger, an indicator supported bysaid carrier, and a bell crank lever pivotally attached to said hangerand opera tively associated with said rod and said indicator. v

17 In a device of the character described, a bed, a holder thereon, asupport, contact means carried by said support and adapted to engage anarticle supported by said holder, constant tension means for operatingsaid contact means, and means for varying the position of the contactmeans and the work holder relative to each other.

18. In a gaging device, means for support ing an article to be gagedcomprising a bed, a reciprocating plate thereon, a holder pivotallymounted on said plate, and means to adjust the position of said holder.

19. In a gaging device, means for supporting an article to be gagedcomprising a bed, a; reciprocatinv plate thereon, a holder pivotally;mounted on said plate, and set screws carried by said plate andcontacting with the ends of said holder to maintain said holder inproper position.

20. In a gaging device, means for supporting an article to be gagedcomprising a bed, a reciprocating plate thereon, a holder pivotallymounted on said plate, set screws carried by said plate and contactingwith the ends of said holder. to maintain said holder in properposition, and means to vary the range or stroke of reciprocation of saidplate.

. IRVIN FLINN WOODROW.

